// Detect if browser is Netscape 3 + or IE 4 +.
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
    if ((bName == "Netscape" && bVer >= 3) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 
    else br = "n2";

// Create image objects, preload all active and inactive images.
    if (br== "n3") { 
// Main Menu Buttons On
    aboutOn = new Image();
    aboutOn.src = "images/home/nav/aboutOn.gif";
    discographyOn = new Image();          			
    discographyOn.src = "images/home/nav/discographyOn.gif";  		
    calendarOn = new Image();
    calendarOn.src = "images/home/nav/calendarOn.gif";
    galleryOn = new Image();
    galleryOn.src = "images/home/nav/galleryOn.gif";
    teachingOn = new Image();
    teachingOn.src = "images/home/nav/teachingOn.gif";
    contactOn = new Image();
    contactOn.src = "images/home/nav/contactOn.gif";


// Main Menu Buttons Off
    aboutOff = new Image();
    aboutOff.src = "images/home/nav/aboutOn.gif";
    discographyOff = new Image();          			
    discographyOff.src = "images/home/nav/discographyOff.gif";  		
    calendarOff = new Image();
    calendarOff.src = "images/home/nav/calendarOff.gif";
    galleryOff = new Image();
    galleryOff.src = "images/home/nav/galleryOff.gif";
    teachingOff = new Image();
    teachingOff.src = "images/home/nav/teachingOff.gif";
    contactOff = new Image();
    contactOff.src = "images/home/nav/contactOff.gif";

}

// Function to "activate" image.
function act(imgName) {
    if (br == "n3") {
    document[imgName].src = eval(imgName + "On.src");


    }
}

// Function to "deactivate" image.
function inact(imgName) {
    if (br == "n3") {
    document[imgName].src = eval(imgName + "Off.src");

    }
}